UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120806.upa.cvt Date: 0600Z 8 DEC 25 Searching for ETHA... Searching the city database file for: ETHA ... Date:0600Z 8 DEC 25 Station: ETHA WMO ident: 10954 Latitude: 47.83 Longitude: 10.87 Elevation: 757.00 ------------------------------------------------------------------------------- LEV PRES HGHT TEMP DEWP RH DD WETB DIR SPD THETA THE-V THE-W THE-E W mb m C C % C C deg knt K K K K g/kg ------------------------------------------------------------------------------- 0 1000 144 SFC 930 757 9.4 7.7 89 1.7 8.5 270 15 288.5 289.7 284.8 308.5 7.10 2 925 799 9.6 7.5 87 2.1 8.5 255 19 289.1 290.4 284.9 309.0 7.04 3 850 1497 6.6 5.1 90 1.5 5.8 270 35 293.1 294.2 285.9 311.8 6.49 4 700 3067 -2.5 -4.1 89 1.6 -3.2 300 29 299.7 300.5 286.0 311.9 4.03 5 500 5660 -17.5 -17.5 100 0.0 -17.5 315 29 311.7 312.1 288.1 318.0 1.93 6 400 7300 -27.9 -32.9 62 5.0 -28.6 305 35 318.7 318.8 289.0 320.9 0.60 7 300 9300 -42.9 -51.9 37 9.0 -43.3 280 40 324.9 324.9 290.3 325.3 0.11 8 250 10500 -53.7 -59.7 48 6.0 -53.8 280 36 326.2 326.2 290.7 326.4 0.05 9 200 11890 -65.9 -70.9 50 5.0 -66.0 290 40 328.4 328.4 291.3 328.5 0.01 10 172 12793 -71.9 -75.4 59 3.5 -71.9 300 52 332.9 332.9 292.5 333.0 0.01 11 150 13600 -72.3 -77.3 47 5.0 -72.3 300 50 345.5 345.6 295.6 345.6 0.01 12 100 16050 -66.7 -85.7 5 19.0 -66.8 290 29 398.9 398.9 305.0 398.9 0.00 TRP 172 12793 -71.9 -75.4 59 3.5 -71.9 300 52 332.9 332.9 292.5 333.0 0.01 WND Sounding variables and indices 1000-500 mb thick: 5516.00 m Freezing level: 741.21 mb = 2635.68 m = 8647.14 ft Wetbulb zero: 753.24 mb = 2474.22 m = 8117.41 ft Precipitable water: 0.84 inches Sfc-500 mean rel hum: 91.96 % Est. max temperature: 16.80 C = 62.23 F Sfc-Lift cond lev (LCL): 906.28 mb = 967.77 m = 3175.06 ft T: 8.87 C 700-500 lapse rate: 5.78 C/km ThetaE index: 0.00 C Layer 930.0- 0.0 mb Conv cond level (CCL): 822.17 mb = 1766.21 m = 5794.57 ft Mean mixing ratio: 6.68 g/kg Conv temperature: 15.02 C = 59.04 F Cap Strength: 1.31 C Lifted Index: 4.42 C Risk: None Lifted Index @300 mb: 10.34 C Lifted Index @700 mb: 1.29 C Showalter Index: 3.69 C Risk: None Total Totals Index: 46.70 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.10 C Cross Totals Index: 22.60 C K Index: 27.60 Risk: 40-60 % chance of thunderstorms Sweat Index: 160.20 Risk: None Energy Index: 1.20 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 16.01 J/kg Max Up Vert Vel: 5.66 m/s Conv Inhibition (B-): 7123.71 J/kg Cap Strength: 4.30 C Lift Cond Lev (LCL): 855.55 mb = 1443.23 m = 4734.96 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 328 at 22 knt ---------------------------------------------------------- TRUE/GROUND REL | STORM REL LEV P H DIR SPD U V | DIR SPD U V mb m knt m/s | knt m/s ---------------------------------------------------------- 0 930 757 270 15 15.0 -0.0 | 189 19 3.0 18.9 1 925 799 255 19 18.4 4.9 | 195 25 6.4 23.8 2 850 1497 270 35 35.0 -0.0 | 231 30 23.0 18.9 3 700 3067 300 29 25.1 -14.5 | 252 14 13.1 4.4 4 500 5660 315 29 20.5 -20.5 | 281 9 8.5 -1.6 5 400 7300 305 35 28.7 -20.1 | 274 17 16.7 -1.2 6 300 9300 280 40 39.4 -6.9 | 246 30 27.4 11.9 7 250 10500 280 36 35.5 -6.3 | 242 27 23.5 12.6 8 200 11890 290 40 37.6 -13.7 | 259 26 25.6 5.2 9 172 12793 300 52 45.0 -26.0 | 282 34 33.0 -7.1 10 150 13600 300 50 43.3 -25.0 | 281 32 31.3 -6.1 11 100 16050 290 29 27.3 -9.9 | 240 18 15.3 9.0 Wind Parameters Mean winds (0-6000m): 297.6 at 29.8 knts Storm direction: 327.6 at 22.4 knts Shear (0-3000m) pos: 3.4 neg: 2.5 tot: 5.9 10-3/s Storm rel Dir Shear (0-3000m): 68.5 deg Storm rel helicity (0-3000m) pos: 181.7 neg: 0.0 tot: 181.7 m^2/s^2 ave: 60.6 10^-3 m/s^2 rel: 0.66 Storm rel vorticity (0-3000m) horiz: 7.3 stream: 4.8 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.38 Bulk Shear: 41.76 m/s Storm Parameters ------------------------------------------------------------------------------- Depth Mean Inflow| Shear | Helicity | Vorticity AGL Dir Spd Dir Spd| Pos Neg Tot| Pos Neg Tot Ave Rel | Hor Strm m knt knt| 10^-3/s | m^2/s^2 m/s^2 | 10^-3/s ------------------------------------------------------------------------------- 500 261 24 207 25| 0.0 15.0 15.0| 85.9 0.0 85.9 171.9 0.78| 17.2 13.4 1000 267 28 219 26| 3.7 7.5 11.2|142.5 0.0 142.5 142.5 0.80| 13.2 10.5 1500 271 30 225 25| 3.7 5.0 8.7|160.5 0.0 160.5 107.0 0.74| 10.8 8.0 2000 276 30 229 24| 3.9 3.8 7.6|172.2 0.0 172.2 86.1 0.69| 9.5 6.6 2500 280 30 232 22| 3.7 3.0 6.8|178.3 0.0 178.3 71.3 0.66| 8.4 5.6 3000 283 30 235 21| 3.4 2.5 5.9|181.7 0.0 181.7 60.6 0.66| 7.3 4.8 4000 289 30 241 18| 2.9 1.9 4.8|188.0 0.0 188.0 47.0 0.67| 5.8 3.9 5000 294 30 246 16| 2.5 1.5 4.0|193.2 -0.1 193.1 38.6 0.67| 5.0 3.3 6000 298 30 251 15| 2.1 1.7 3.8|193.2 -2.6 190.5 31.8 0.59| 4.6 2.7 Wrote GIF file: /home/apache/climate/data/raob//ETHA/skewt/ETHA.skewt.20251208.06.gif